Guided by the color and texture of the walls in La Habana, Cuba, San Antonio Artist and Photographer Jorge Villarreal finds a gem in each wall in his series, "You're a Gem." The salt from the ocean's air distresses and erodes the layers of paint from the walls developing gemstone-like formations. For Villarreal, discovering these walls tucked away in small alleyways and hidden corners is what makes the city of La Habana the true gem.